Put your stat points in proficiency. You can't go wrong with that. At level 60 you can customize stats nicely with gear, but proficiency is objectively good. You can get enough bloodlust from gear with brutality. Brutality is also good, but it benefits from having high proficiency.
Colin Quinn Recipe for success/dinner. 1/2 cup of brass you know whats, a tablespoon of I don't give a care, and a pound of get off my back, jack!